Two way datalink vs one way data link difference

[armedupdate]

What is the difference.

I read the Gripen and Typhoon using the Meteor use two way data link but the Rafale is restricted to one way. US airplanes don't have two way till the AIM-120D.

I believe one way is the the plane guides the missiles, till the finds something and two way is the missile communicate if the seeker has locked on correct? Two way allows guidance in the terminal phase and is better against jamming it seems.

[popcorn]

One benefit of a 2-way data link. http://www.prnewswire.com/news-releases ... 54203.html

[hornetfinn]

Two-way datalink gives several advantages:
- hit/kill assessment (pilot will know if the missile hits, misses or malfunctions)
- ECM resistance
- better guidance due to actually knowing where the missile is at any moment instead of calculating where it probably is
- better endgame guidance due to fighter systems seeing what missile seeker sees

Of course one-way datalink is easier and cheaper to implement.

[armedupdate]

So if the seeker is jammed with DFRM to a different location, can the pilot with AESA lets say retarget by finding and guessing where the missile at compared to the target.

[eloise]

So if the seeker is jammed with DFRM to a different location, can the pilot with AESA lets say retarget by finding and guessing where the missile at compared to the target.

yes he can give the missiles the real position of target by datalink , and no he dont have to guess the missiles position since it can tell him ( 2way datalink )

[popcorn]

IMO 2-way data links are an important enabler to the Combat Cloud concept, making it more robust and reliable by providing direct feedback and confidence that ordnance serves it's intended purpose. More effective use of munitions, reduced risk of collateral damage, mitigated friendly fire risks are some tangible benefits.

[hornetfinn]

So if the seeker is jammed with DFRM to a different location, can the pilot with AESA lets say retarget by finding and guessing where the missile at compared to the target.

yes he can give the missiles the real position of target by datalink , and no he dont have to guess the missiles position since it can tell him ( 2way datalink )

IMO, it's likely that the whole process would be automatic. I doubt there is enough time for pilot to do much anything in the very short timeframe the missile would be active. Of course computers would not have much trouble doing such tasks within milliseconds. Basically the missile and aircraft computers would be talking and make decisions based on what each see and know about the situation. Of course all the data might go through sensor fusion engine of the fighter and take into account a lot of other data coming from datalinks and other sensors etc.

[falcon.16]

Wich protocole use datalink between fighter and missile? datalink 16?